• Install, configure, and manage PostgreSQL (Patroni), MongoDB replica sets, MySQL/MariaDB HA, and MS SQL Server Always On in production environments.
• Ensure high availability, replication, and automated failover for mission-critical databases.
• Perform database and query performance tuning, indexing optimization, and resource utilization analysis.
• Maintain backup and recovery strategies using pgBackRest, PBM, Percona XtraBackup, and SQL Server native tools.
• Conduct Disaster Recovery (DR) drills, ensuring RTO/RPO compliance.
• Automate database provisioning, configuration, and operations.
• Implement and maintain monitoring and alerting using Prometheus, Grafana, and PMM.
• Perform database upgrades, migrations, and patching with minimal downtime.
• Implement strong security, access controls, encryption, and auditing practices.
• Maintain SOPs, technical documentation, architecture diagrams, and operational runbooks.
• Participate in 24x7 on-call rotations, resolve incidents, and ensure SLA adherence.